/* KB Metall Technik: gemeinsames Stylesheet fuer alle Seiten */

/* Schrift Archivo (SIL Open Font License), lokal eingebunden */
@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-weight: 300 700;
  font-stretch: 100% 125%;
  font-display: swap;
  src: url(../fonts/archivo-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-weight: 300 700;
  font-stretch: 100% 125%;
  font-display: swap;
  src: url(../fonts/archivo-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg: #ffffff;
  --bg-2: #f1f1ef;
  --ink: #111111;
  --muted: #6e6e6a;
  --line: #dededa;
  --font: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --wrap: 1320px;
  --gut: clamp(20px, 4vw, 48px);
  --head: 68px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--head); }
body { background: var(--bg); color: var(--ink); font: 400 17px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { color: inherit; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }
h1, h2, h3 { font-stretch: 125%; line-height: 1.04; text-transform: uppercase; overflow-wrap: break-word; hyphens: auto; }
h2 { font-size: clamp(30px, 4.2vw, 56px); font-weight: 300; }
h1 b, h2 b { font-weight: 700; }
.label { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.muted { color: var(--muted); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 100; background: #fff; padding: 10px 14px; }
:focus-visible { outline: 2px solid #272d6e; outline-offset: 3px; }

/* Platzhalter fuer fehlende Angaben. Vor Veroeffentlichung muessen alle entfernt sein. */
.todo { background: #fff3b0; color: #5a4b00; padding: 0 4px; }

/* Buttons */
.btn { display: inline-block; padding: 14px 24px; background: var(--ink); color: #fff; border: 1px solid var(--ink); font: 500 13px var(--font); letter-spacing: 0.12em; text-transform: uppercase; text-decoration: none; transition: background .2s, color .2s; cursor: pointer; text-align: center; }
.btn:hover { background: transparent; color: var(--ink); }
.btn.light { background: #fff; color: var(--ink); border-color: #fff; }
.btn.light:hover { background: transparent; color: #fff; }
.btn.ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn.ghost:hover { background: #fff; color: var(--ink); }
.btn.outline { background: transparent; color: var(--ink); }
.btn.outline:hover { background: var(--ink); color: #fff; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.more-link { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500; text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: 2px; }

/* Kopfzeile */
.site-head { position: fixed; inset: 0 0 auto 0; z-index: 20; background: var(--ink); color: #fff; }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: var(--head); }
.nav .logo img { height: 30px; width: auto; }
.nav ul { display: flex; gap: 34px; list-style: none; font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; }
.nav ul a { text-decoration: none; opacity: .75; }
.nav ul a:hover, .nav ul a[aria-current="page"] { opacity: 1; }
.nav .btn { padding: 10px 18px; }
.nav-right { display: flex; align-items: center; gap: 10px; }
.menu-btn { display: none; background: none; border: 1px solid rgba(255,255,255,.5); color: #fff; width: 42px; height: 40px; cursor: pointer; }
.menu-btn span { display: block; width: 18px; height: 1.5px; background: #fff; margin: 4px auto; }
main { padding-top: var(--head); }
main.flush { padding-top: 0; }

/* Startbild */
.hero { position: relative; height: 100svh; min-height: 560px; color: #fff; overflow: hidden; background: #2a2622; }
.hero > img { position: absolute; inset: 0; object-position: 50% 42%; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.2) 0%, rgba(0,0,0,0) 25%, rgba(0,0,0,0) 55%, rgba(0,0,0,.6) 100%); }
.hero .wrap { position: relative; z-index: 1; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; padding-bottom: clamp(36px, 5vw, 64px); text-shadow: 0 1px 12px rgba(0,0,0,.45); }
.hero h1 { font-size: clamp(28px, 3.4vw, 48px); font-weight: 300; margin-bottom: 12px; }
.hero p { max-width: 34em; color: rgba(255,255,255,.85); margin-bottom: 18px; font-size: 16px; }
.scope { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; }
.hero .scope { color: rgba(255,255,255,.7); margin-bottom: 26px; }
.scope i { width: 1px; height: 11px; background: currentColor; opacity: .5; }

/* Seitenkopf fuer Unterseiten */
.page-head { padding-top: clamp(48px, 7vw, 96px); padding-bottom: clamp(28px, 4vw, 48px); }
.page-head h1 { font-size: clamp(34px, 5vw, 72px); font-weight: 300; margin: 14px 0 18px; }
.page-head p { max-width: 40em; color: var(--muted); }
.page-hero { position: relative; height: min(70vh, 640px); min-height: 360px; overflow: hidden; color: #fff; background: #2a2622; }
.page-hero img { position: absolute; inset: 0; }
.page-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,.6) 100%); }
.page-hero .wrap { position: relative; z-index: 1; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; padding-bottom: clamp(28px, 4vw, 52px); text-shadow: 0 1px 12px rgba(0,0,0,.4); }
.page-hero h1 { font-size: clamp(34px, 5vw, 72px); font-weight: 300; margin-top: 10px; }
.page-hero .label { color: rgba(255,255,255,.8); }

section { padding: clamp(64px, 9vw, 128px) 0; }
section.tight { padding-top: 0; }
.head { display: flex; justify-content: space-between; align-items: end; flex-wrap: wrap; gap: 16px 24px; margin-bottom: clamp(28px, 4vw, 52px); }

/* Projekte Startseite */
.proj { display: grid; grid-template-columns: 7fr 5fr; gap: 8px; text-decoration: none; }
.proj .big { grid-row: span 2; aspect-ratio: 4 / 5; overflow: hidden; }
.proj .small { aspect-ratio: 5 / 4; overflow: hidden; }
.proj img, .card img, .tile img { transition: transform .7s ease; }
.proj:hover img, .card:hover img { transform: scale(1.03); }
.proj-text { display: grid; grid-template-columns: 7fr 5fr; gap: var(--gut); margin-top: 28px; }
.proj-text h3, .card h3 { font-size: clamp(24px, 2.6vw, 34px); font-weight: 700; margin: 8px 0 0; }
.proj-text p { color: var(--muted); margin-bottom: 16px; }
.facts { display: flex; flex-wrap: wrap; gap: 8px 28px; font-size: 14px; color: var(--muted); margin-bottom: 18px; }
.facts b { font-weight: 500; color: var(--ink); }

.card { display: grid; grid-template-columns: 5fr 7fr; margin-top: clamp(48px, 6vw, 88px); background: var(--bg-2); text-decoration: none; }
.card figure { aspect-ratio: 4 / 5; overflow: hidden; }
.card > div { padding: clamp(28px, 5vw, 72px); align-self: center; }
.card p { color: var(--muted); margin: 14px 0 22px; }

/* Anruf-Band */
.call { background: var(--ink); color: #fff; padding: clamp(48px, 7vw, 96px) 0; }
.call .wrap { display: grid; grid-template-columns: 1fr auto; gap: 24px var(--gut); align-items: end; }
.call h2 { font-size: clamp(26px, 3.4vw, 46px); }
.call p { color: #b5b5b0; margin-top: 14px; max-width: 32em; }
.call .phone { display: block; font-stretch: 125%; font-weight: 700; font-size: clamp(26px, 3.6vw, 48px); text-decoration: none; letter-spacing: 0.01em; margin-bottom: 14px; white-space: nowrap; }
.call .phone:hover { text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 2px; }

/* Leistungen */
.svc { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.tile { position: relative; display: block; aspect-ratio: 3 / 4; overflow: hidden; color: #fff; text-decoration: none; background: #2a2622; }
.tile:hover img { transform: scale(1.04); }
.tile::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0) 45%, rgba(0,0,0,.72) 100%); }
.tile div { position: absolute; z-index: 1; left: 20px; right: 20px; bottom: 18px; }
.tile h3 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.tile p { font-size: 14px; line-height: 1.45; color: rgba(255,255,255,.88); }

/* Arbeitsweise */
.why { background: var(--ink); color: #fff; }
.why h2 { margin-bottom: clamp(32px, 4vw, 56px); max-width: 16em; }
.cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gut); }
.cols > div { border-top: 1px solid #3a3a3a; padding-top: 18px; }
.cols .n { font-size: 12px; letter-spacing: 0.14em; color: #8a8a86; }
.cols b { display: block; margin: 10px 0 6px; font-weight: 700; text-transform: uppercase; font-stretch: 125%; font-size: 15px; letter-spacing: 0.03em; }
.cols p { color: #b5b5b0; font-size: 15px; }

/* Bildraster mit Beschriftung */
.more { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.more figure { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--bg-2); }
.more figcaption, .gallery figcaption { position: absolute; left: 0; bottom: 0; background: #fff; padding: 8px 14px; font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 500; }

/* Ueber uns Teaser */
.about { display: grid; grid-template-columns: 6fr 3fr 5fr; gap: 8px; }
.about figure { overflow: hidden; aspect-ratio: 3 / 4; }
.about .text { padding-left: clamp(16px, 3vw, 40px); align-self: center; }
.about h2 { margin-bottom: 22px; }
.about p { color: var(--muted); margin-bottom: 18px; }

/* Kontakt */
.contact { background: var(--bg-2); }
.contact .grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gut); }
.contact h2 { margin-bottom: 22px; }
.contact .intro { color: var(--muted); margin-bottom: 28px; max-width: 28em; }
.big-link { display: block; font-stretch: 125%; font-weight: 700; font-size: clamp(22px, 2.4vw, 32px); text-decoration: none; margin-bottom: 6px; word-break: break-word; }
.big-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.address { margin-top: 26px; color: var(--muted); font-size: 15px; }
form { display: grid; gap: 10px; }
form label.vh { position: absolute; left: -9999px; }
input, select, textarea { width: 100%; background: #fff; border: 1px solid var(--line); border-radius: 0; font: 16px var(--font); padding: 14px 16px; color: var(--ink); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--ink); }
textarea { min-height: 140px; resize: vertical; }
.file { font-size: 14px; color: var(--muted); }
.file input { padding: 10px; background: #fff; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--muted); }
.check input { width: auto; margin-top: 4px; }
.hp { position: absolute; left: -9999px; }
form .btn { justify-self: start; margin-top: 6px; }
.form-note { font-size: 14px; color: var(--muted); }
.form-msg { background: var(--ink); color: #fff; padding: 16px 18px; font-weight: 500; }
.form-msg.err { background: #a01818; }

/* Datenblatt */
.sheet { width: 100%; border-collapse: collapse; font-size: 16px; table-layout: fixed; }
.sheet th, .sheet td { overflow-wrap: anywhere; hyphens: auto; }
.sheet th, .sheet td { text-align: left; vertical-align: top; padding: 14px 0; border-bottom: 1px solid var(--line); }
.sheet tr:first-child th, .sheet tr:first-child td { border-top: 1px solid var(--ink); }
.sheet th { width: 34%; font-weight: 500; font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); padding-right: 16px; padding-top: 17px; }
.split { display: grid; grid-template-columns: 4fr 8fr; gap: var(--gut); }
.split h2 { position: sticky; top: calc(var(--head) + 24px); align-self: start; }

/* Ablauf */
.steps { list-style: none; counter-reset: s; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 var(--gut); }
.steps li { counter-increment: s; border-top: 1px solid #3a3a3a; padding: 18px 0 30px; }
.steps li::before { content: "0" counter(s); display: block; font-size: 12px; letter-spacing: 0.14em; color: #8a8a86; }
.steps b { display: block; margin: 10px 0 6px; font-weight: 700; text-transform: uppercase; font-stretch: 125%; font-size: 15px; letter-spacing: 0.03em; }
.steps p { color: #b5b5b0; font-size: 15px; }
.lead { font-size: clamp(20px, 2vw, 26px); line-height: 1.45; max-width: 30em; margin-bottom: clamp(36px, 5vw, 64px); }

/* Ausstattung */
.kit { display: grid; grid-template-columns: 6fr 6fr; gap: var(--gut); align-items: start; }
.kit ul { list-style: none; }
.kit li { padding: 14px 0; border-bottom: 1px solid var(--line); }
.kit li:first-child { border-top: 1px solid var(--ink); }
.kit li span { display: block; font-size: 14px; color: var(--muted); }
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.duo figure { aspect-ratio: 3 / 4; overflow: hidden; }

/* Projektseite */
.intro-grid { display: grid; grid-template-columns: 7fr 5fr; gap: var(--gut); }
.intro-grid p { color: var(--muted); margin-bottom: 14px; }
.part { padding: clamp(48px, 6vw, 88px) 0 0; }
.part-head { display: grid; grid-template-columns: 5fr 7fr; gap: var(--gut); margin-bottom: 24px; align-items: end; }
.part-head h2 { font-size: clamp(24px, 3vw, 40px); }
.part-head p { color: var(--muted); }
.pics { display: grid; grid-template-columns: repeat(12, 1fr); gap: 8px; }
.pics figure { overflow: hidden; aspect-ratio: 3 / 4; grid-column: span 4; background: var(--bg-2); cursor: zoom-in; }
.pics figure.w6 { grid-column: span 6; }
.pics figure.w8 { grid-column: span 8; aspect-ratio: auto; }
.pics figure.w12 { grid-column: span 12; aspect-ratio: 16 / 9; }

/* Galerie */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.filters button { background: none; border: 1px solid var(--line); padding: 10px 16px; font: 500 12px var(--font); letter-spacing: 0.12em; text-transform: uppercase; cursor: pointer; color: var(--ink); }
.filters button[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.gallery figure { position: relative; aspect-ratio: 4 / 5; overflow: hidden; background: var(--bg-2); cursor: zoom-in; }
.gallery figure[hidden] { display: none; }

/* Grosse Ansicht */
.lightbox { position: fixed; inset: 0; z-index: 50; background: rgba(10,10,10,.95); display: none; align-items: center; justify-content: center; padding: 56px 16px; }
.lightbox.open { display: flex; }
.lightbox img { width: auto; height: auto; max-width: 100%; max-height: 100%; object-fit: contain; }
.lightbox button { position: absolute; background: none; border: 0; color: #fff; font: 300 34px/1 var(--font); cursor: pointer; padding: 12px 16px; }
.lightbox .close { top: 8px; right: 8px; }
.lightbox .prev { left: 4px; top: 50%; transform: translateY(-50%); }
.lightbox .next { right: 4px; top: 50%; transform: translateY(-50%); }
.lightbox .cap { position: absolute; bottom: 16px; left: 0; right: 0; text-align: center; color: #bbb; font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; }

/* Rechtstexte */
.legal { max-width: 46em; }
.legal h2 { font-size: 22px; font-weight: 700; margin: 40px 0 12px; }
.legal p, .legal li { margin-bottom: 10px; }
.legal ul { padding-left: 20px; }
.legal .sheet { margin-top: 8px; }
.notice { border-left: 3px solid #e0c200; background: #fffbe6; padding: 14px 18px; margin-bottom: 28px; font-size: 15px; }

/* Fusszeile */
.site-foot { background: var(--ink); color: #9a9a96; font-size: 13px; }
.site-foot .wrap { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; padding-top: 56px; padding-bottom: 28px; }
.site-foot img { height: 28px; width: auto; margin-bottom: 18px; }
.site-foot a { text-decoration: none; }
.site-foot a:hover { color: #fff; }
.site-foot ul { list-style: none; display: grid; gap: 8px; letter-spacing: 0.1em; text-transform: uppercase; }
.site-foot .base { grid-column: 1 / -1; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-top: 1px solid #2c2c2c; padding-top: 20px; }
.claim { letter-spacing: 0.18em; text-transform: uppercase; font-size: 11px; color: #6e6e6a; }

/* Dezentes Einblenden, nur wenn JavaScript laeuft */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .8s ease, transform .8s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .proj img, .card img, .tile img { transition: none; }
}

/* Tablet und Handy */
@media (max-width: 900px) {
  .menu-btn { display: block; }
  .nav ul { display: none; position: absolute; top: var(--head); left: 0; right: 0; background: var(--ink); flex-direction: column; gap: 0; padding: 8px var(--gut) 20px; border-top: 1px solid #2c2c2c; }
  .nav ul.open { display: flex; }
  .nav ul a { display: block; padding: 14px 0; opacity: 1; }
  .proj, .proj-text, .card, .contact .grid, .call .wrap, .split, .kit, .intro-grid, .part-head { grid-template-columns: 1fr; }
  .proj .big { grid-row: auto; }
  .split h2 { position: static; }
  .svc, .cols, .more, .gallery { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .about { grid-template-columns: 1fr 1fr; }
  .about .text { grid-column: 1 / -1; padding: 24px 0 0; }
  .pics figure, .pics figure.w6, .pics figure.w8 { grid-column: span 6; aspect-ratio: 3 / 4; }
  .site-foot .wrap { grid-template-columns: 1fr 1fr; }
  .site-foot .wrap > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .svc, .cols, .steps { grid-template-columns: 1fr; }
  .gallery, .more { grid-template-columns: 1fr 1fr; gap: 6px; }
  .more figcaption, .gallery figcaption { font-size: 10px; padding: 6px 8px; }
  .nav .logo img { height: 24px; }
  .nav .btn { padding: 9px 12px; font-size: 12px; }
  .sheet th { width: 40%; }
}